IAI MSCON - Page 253

Chapter 6 Absolute Reset and Absolute Battery
245
Voltage PIO Signals Alarm
3.1V ±3% or less
Voltage drop alert signal
*BALM
(Note 2)
ON
No message
2.5V ±8% or less
Alarm signal *ALM
(Note 2)
OFF
0EE Absolute Encoder Error Detection 2
Note 2: BALM and ALM are the signals of active low in Remote I/O Mode, and active high in
other modes. (Note) there is no BALM Signal in Positioner 3 Mode.
Replace the battery before alarm is generated due to the lamp display by BALM
signal of PLC.
If the alarm is generated, it will be necessary to absolute reset after the battery
replacement.
Note 3: BALM and ALM are the signals of active low in Remote I/O Mode, and active high in
other modes. There is no BALM Signal in Positioner 3 Mode.
Normal
3.6V
3.1V
2.5V
Alarm Signal Output
Alarm
occurred
Absolute reset not required
Battery voltage
ALM OFF
Absolute reset
required
ON
OFF
BALM signal
(N
o
t
e
3
)
(MSCON→PLC)
ALM signal
(N
o
t
e
3
)
(MSCON→PLC)
ON
OFF
ME0306-2A